Ventilation treatment device and ventilation-control method

ABSTRACT

A ventilation treatment device and a ventilation-control method are provided. During use, when a headband contacts a headrest, a first valve assembly contacts a second valve assembly to open first air holes and second air holes, thereby communicating a first chamber with a second chamber, such that air from an air source into the first chamber enters the second chamber and further enters a respiratory chamber of a patient connecting apparatus for inhalation by a patient; and when the headband is separated from the headrest, the first valve assembly and the second value assembly are separated to close the first air holes and the second air holes, thereby preventing the air in the first chamber and the second chamber from flowing out through the first air holes and the second air holes, respectively.

CROSS REFERENCE TO RELEVANT APPLICATIONS

This application is the national phase entry of InternationalApplication No. PCT/CN2020/141985, filed on Dec. 31, 2020, which isbased upon and claims priority to Chinese Patent Application No.201911413191.3, filed on Dec. 31, 2019; the entire contents of which areincorporated herein by reference.

TECHNICAL FIELD

The present disclosure relates to the technical field of ventilationtreatment, and more particularly, to a ventilation-treatment apparatusand a ventilation-control method.

BACKGROUND

The existing ventilation-treatment apparatus generally includes amainframe for generating treatment gas, a patient-interface device, anda ventilation pipeline connecting a mainframe and the patient-interfacedevice. The patient-interface device generally includes a breathing masksuch as a nasal mask, an oral-nasal mask, a nasal pillow mask and afull-surface mask. A typical structure of the breathing mask includes aframe, a pad, a bent pipe and a head band. The pad is fixed to the frameand forms the respiratory cavity with the frame. One end of the bentpipe is connected to the ventilation pipeline, and the other end isconnected to the frame to deliver the treatment gas from the mainframeinto the respiratory cavity. The head band is connected to the head ofthe patient to fix the breathing mask to the head of the patient. Inusage, the pad contacts the face of the patient and implements thesealing with the surface, and the mouth and/or the nose of the patientis put inside the respiratory cavity.

However, the above-described ventilation-treatment apparatus has thefollowing problems. In nighttime treatment, some unconscious actions can(such as turning over or rotating head) affect the reliability of theventilation treatment when the patient is in sleep. In addition, whenthe patient requires to pause the treatment, he is required to shut downthe mainframe, and take down the breathing mask or separate theventilation pipeline and the mainframe, otherwise, the device will havea very large gas-leakage noise, which affects the rest of the company.When the patient requires to restart the treatment, he is required towear the breathing mask or connect the ventilation pipeline to themainframe and start up the mainframe, therefore, the overall comfort ofthe patient during treatment can be seriously affected due to suchtedious operations in the process.

SUMMARY

An object of the present disclosure is to provide aventilation-treatment apparatus and a ventilation-control method, tosolve the above problems.

In order to achieve the above object, an aspect of the presentdisclosure provides a ventilation-treatment apparatus, wherein theventilation-treatment apparatus includes:

a headrest, wherein the headrest includes a first chamber, and a gasinlet and a first gas hole that communicate with the first chamber, thegas inlet is for a gas from a gas source to enter the first chamber, anda first valve assembly for opening and closing the first gas hole isdisposed at the first gas hole; and

a patient-interface device, wherein the patient-interface deviceincludes a main body having a respiratory cavity, and a head bandconnected to the main body, the head band includes a second chamber, agas outlet and a second gas hole that communicates with the secondchamber, the gas outlet communicates with the second chamber and therespiratory cavity, and a second valve assembly for opening and closingthe second gas hole is disposed at the second gas hole; and

the ventilation-treatment apparatus is configured for, when the firstvalve assembly and the second valve assembly contact, opening the firstgas hole and the second gas hole, to make the first chamber and thesecond chamber to be communicated, and when the first valve assembly andthe second valve assembly are separated, closing the first gas hole andthe second gas hole.

Optionally, the first valve assembly includes a first valve body, andthe first valve body penetrates the first gas hole and is capable ofmoving reciprocatingly relative to the first gas hole and in an axialdirection of the first gas hole, to move between a first openingposition of opening the first gas hole and a first closing position ofclosing the first gas hole;

the second valve assembly includes a second valve body, and the secondvalve body penetrates the second gas hole and is capable of movingreciprocatingly relative to the second gas hole and in an axialdirection of the second gas hole, to move between a second openingposition of opening the second gas hole and a second closing position ofclosing the second gas hole:

when the first valve body and the second valve body contact, the firstvalve body moves to the first opening position, and the second valvebody moves to the second opening position; and

when the first valve body and the second valve body are separated, thefirst valve body moves to the first closing position, and the secondvalve body moves to the second closing position.

Optionally, the first valve assembly includes a first electrical drivingmember, and the first electrical driving member is configured to becapable of, when the first valve body and the second valve body contact,controlling the first valve body to move to the first opening position,and, when the first valve body and the second valve body are separated,controlling the first valve body to move to the first closing position;and

the second valve assembly includes a second electrical driving member,and the second electrical driving member is configured to be capable of,when the second valve body and the first valve body contact, controllingthe second valve body to move to the second opening position, and, whenthe second valve body and the first valve body are separated,controlling the second valve body to move to the second closingposition.

Optionally, the first valve assembly includes a first elastic member,and the first elastic member is configured to be capable of, beingcompressed to allow the first valve body to move to the first openingposition when the first valve body is under a pressure, and, beingrestored to drive the first valve body to move to the first closingposition when the first valve body is released from the pressure; andthe second valve assembly comprises a second elastic member, and thesecond elastic member is configured to be capable of being compressed toallow the second valve body to move to the second opening position whenthe second valve body is under a pressure, and, being restored to drivethe second valve body to move to the second closing position when thesecond valve is released from the pressure.

Optionally, the first valve body includes a first penetrating part, anda first covering part and a first stopping part that are connected totwo ends of the first penetrating part, respectively, the firstpenetrating part penetrates the first gas hole and forms a radial gapwith the first gas hole, the first covering part and the first stoppingpart are located at an inner side and an outer side of the first gashole, respectively, the first covering part is configured for coveringand opening the radial gap, the first elastic member is a compressionspring nested to the first penetrating part, and the first elasticmember is connected between the first stopping part and a periphery ofthe first gas hole; and

the second valve body includes a second penetrating part, and a secondcovering part and a second stopping part that are connected to two endsof the second penetrating part, the second penetrating part penetratesthe second gas hole and forms a radial gap with the second gas hole, thesecond covering part and the second stopping part are located at aninner side and an outer side of the second gas hole respectively, thesecond covering part is configured for covering and opening the radialgap, the second elastic member is a compression spring nested to thesecond penetrating part, and the second elastic member is connectedbetween the second stopping part and a periphery of the second gas hole.

Optionally, the ventilation-treatment apparatus includes a guidingmember configured for guiding the contacting between the first valveassembly and the second valve assembly; and/or

the ventilation-treatment apparatus includes a sealing member, and thesealing member is for, when the first valve assembly and the secondvalve assembly contact, sealing the communication between the first gashole and the second gas hole.

Optionally, the guiding member includes a first magnet disposed at aperiphery of the first gas hole and a second magnet disposed at aperiphery of the second gas hole, and magnetic poles of the first magnetand magnetic poles of the second magnet are set oppositely andcorrespondingly.

Optionally, the headrest is disposed with a protrusion, a slot isdisposed at a top of the protrusion, the first gas hole is disposed inthe slot, the first magnet extends in a circumferential direction of aslot opening of the slot, the second magnet extends in the periphery ofthe second gas hole, and the slot opening of the slot is sealable withthe head band by attraction between the first magnet and the secondmagnet; or

the head band is disposed with a protrusion, a slot is disposed at a topof the protrusion, the second gas hole is disposed in the slot, thesecond magnet extends in a circumferential direction of a slot openingof the slot, the first magnet extends in the periphery of the first gashole, and the slot opening of the slot is sealable with the headrest byattraction between the first magnet and the second magnet.

Optionally, the guiding member includes a protrusion and a depressionthat match, the protrusion is disposed at one of the headrest and thehead band, the depression is disposed at the other of the headrest andthe head band, the first gas hole is disposed at one of the protrusionand the depression, and the second gas hole is disposed at the other ofthe protrusion and the depression.

Optionally, the sealing member is a sealing ring, and the sealing ringis nested outside the protrusion or inside the depression, to seal theradial gap between the protrusion and the depression when the protrusionis embedded inside the depression.

Optionally, the headrest is disposed with the plurality of first gasholes, the head band is disposed with the plurality of second gas holes,and when the head band and the headrest contact, and a part of thesecond gas holes are capable of being selectively in communication witha part of the first gas holes one to one correspondingly; and/or

the ventilation-treatment apparatus includes a tube assembly, and thetube assembly is connected to the main body to communicate therespiratory cavity with the gas source.

Optionally, the tube assembly includes a first tube piece and a secondtube piece, the tube assembly is provided with a connecting state inwhich the first tube piece and the second tube piece are coaxiallyplug-connected and a separating state in which the first tube piece andthe second tube piece are separate from each other, and the first tubepiece has an inlet end for connecting the gas source and an outlet endfor connecting the second tube piece;

the first tube piece has a discharging hole, and the discharging hole isconfigured so that, in the connecting state, the discharging hole isclosed to make the gas from the gas source to enter the second tubepiece, and in the separating state, the discharging hole is opened tomake the gas from the gas source to be discharged from the discharginghole to the external; and

the tube assembly includes a valve member, and the valve member isconfigured so that, in the connecting state, the valve member opens theoutlet end of the first tube piece to make the gas from the gas sourceto enter the second tube piece, and in the separating state, the valvemember closes the outlet end to make the gas from the gas source to bedischarged from the discharging hole to the external.

Another aspect of the present disclosure provides a ventilation-controlmethod, wherein the method is performed by using theventilation-treatment apparatus stated above, the ventilation-treatmentapparatus further includes a mainframe serving as the gas source, andthe method includes the following steps:

generating a first signal when the first valve assembly and the secondvalve assembly contact, and according to the first signal, controllingthe mainframe to start up or increase a ventilation capacity; and/or

generating a second signal when the first valve assembly and the secondvalve assembly are separated, and according to the second signal,controlling the mainframe to shut down or reduce a ventilation capacity.

By using the above technical solutions, when the ventilation-treatmentapparatus according to the present disclosure is being used, when thehead band and the headrest contact, the first valve assembly and thesecond valve assembly contact to open the first gas hole and the secondgas hole, thereby the first chamber communicates with the secondchamber, whereby the gas entering the first chamber from the gas sourcemay enter the second chamber and further enter the respiratory cavity ofthe patient-interface device for the patient to inhale. When the headband and the headrest are separated, the first valve assembly and thesecond valve assembly are separated to close the first gas hole and thesecond gas hole, thereby preventing the gas inside the first chamber andthe second chamber from flowing out via the first gas hole and thesecond gas hole, respectively. Therefore, the operations on themainframe, the patient-interface device and the ventilation pipelinewhen the treatment is paused can be omitted, to implement simpleoperation and anytime usage which can improve the reliability of theventilation treatment and the comfort of the patient in the treatmentprocess.

The other characteristics and advantages of the present disclosure willbe described in detail in the subsequent section of DETAILED DESCRIPTIONOF THE EMBODIMENTS.

The above description is merely a summary of the technical solutions ofthe present disclosure. In order to more clearly know the elements ofthe present disclosure to enable the implementation according to thecontents of the description, and in order to make the above and otherpurposes, features and advantages of the present disclosure moreapparent and understandable, the particular embodiments of the presentdisclosure are disposed below.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of theembodiments of the present disclosure or the prior art, the figures thatare required to describe the embodiments or the prior art will bebriefly introduced below. Apparently, the figures that are describedbelow are embodiments of the present disclosure, and a person skilled inthe art can obtain other figures according to these figures withoutpaying creative work.

The drawings are intended to provide a further understanding of thepresent disclosure, and constitute part of the description. The drawingsare intended to interpret the present disclosure together with thefollowing particular embodiments, and do not function to limit thepresent disclosure. In the drawings:

FIG. 1 is a schematic diagram of an embodiment of theventilation-treatment apparatus according to the present disclosure,wherein the head band and the headrest are in the separating state;

FIG. 2 is a schematic diagram of an embodiment of, when the first valveassembly and the second valve assembly are separated, closing the firstgas hole and the second gas hole according to the present disclosure;

FIG. 3 is a schematic diagram of, when the first valve assembly and thesecond valve assembly contact, opening the first gas hole and the secondgas hole in FIG. 2 ;

FIG. 4 is a schematic diagram of another embodiment of, when the firstvalve assembly and the second valve assembly are separated, closing thefirst gas hole and the second gas hole according to the presentdisclosure;

FIG. 5 is a schematic diagram of, when the first valve assembly and thesecond valve assembly contact, opening the first gas hole and the secondgas hole in FIG. 4 ;

FIG. 6 is a schematic diagram of yet another embodiment of, when thefirst valve assembly and the second valve assembly are separated,closing the first gas hole and the second gas hole according to thepresent disclosure;

FIG. 7 is a schematic diagram of the connection of the main body of thepatient-interface device and the tube assembly in FIG. 1 ;

FIG. 8 is a schematic diagram of another embodiment of thepatient-interface device according to the present disclosure;

FIG. 9 is a schematic diagram of yet another embodiment of thepatient-interface device according to the present disclosure;

FIG. 10 is a sectional view of the first embodiment of the tube assemblyaccording to the present disclosure, wherein the tube assembly is in theseparating state;

FIG. 11 is a schematic diagram of the connecting state of the tubeassembly in FIG. 10 ;

FIG. 12 is a sectional view of the second embodiment of the tubeassembly according to the present disclosure, wherein the tube assemblyis in the separating state;

FIG. 13 is a sectional view of the third embodiment of the tube assemblyaccording to the present disclosure, wherein the tube assembly is in theseparating state;

FIG. 14 is a sectional view of the fourth embodiment of the tubeassembly according to the present disclosure, wherein the tube assemblyis in the separating state;

FIG. 15 is an enlarged view of the part A in FIG. 14 ;

FIG. 16 is a schematic structural diagram of the fifth embodiment of thetube assembly according to the present disclosure, wherein the tubeassembly is in the separating state;

FIG. 17 is a sectional view of FIG. 16 ;

FIG. 18 is a schematic diagram of the connecting state of the tubeassembly in FIG. 17 ;

FIG. 19 is a sectional view of the sixth embodiment of the tube assemblyaccording to the present disclosure, wherein the tube assembly is in theseparating state;

FIG. 20 is a schematic diagram of the connecting state of the tubeassembly in FIG. 19 ;

FIG. 21 is a schematic diagram in which the tube assembly in FIG. 18 isdisposed with a valve-core stopper;

FIG. 22 is a schematic diagram in which the tube assembly in FIG. 18 isdisposed with a valve cores of different structures;

FIG. 23 is a schematic diagram in which the connecting structureaccording to the first embodiment of the present disclosure is disposedat the tube assembly, wherein the tube assembly is in the separatingstate;

FIG. 24 is a sectional view of the connecting state of the tube assemblyin FIG. 23 ;

FIG. 25 is a schematic diagram in which the connecting structureaccording to the second embodiment of the present disclosure is disposedat the tube assembly, wherein the tube assembly is in the separatingstate;

FIG. 26 is a sectional view of the connecting state of the tube assemblyin FIG. 25 ,

FIG. 27 is a schematic diagram in which the connecting structureaccording to the third embodiment of the present disclosure is disposedat the tube assembly, wherein the tube assembly is in the separatingstate, and a lantern ring is nested outside the first tube piece;

FIG. 28 is a sectional view of FIG. 27 ;

FIG. 29 is a schematic diagram of the connecting state of the tubeassembly in FIG. 28 ;

FIG. 30 is a sectional view in which the connecting structure accordingto the fourth embodiment of the present disclosure is disposed at thetube assembly, wherein the tube assembly is in the connecting state;

FIG. 31 is a schematic diagram in which the connecting structureaccording to the fifth embodiment of the present disclosure is disposedat the tube assembly, wherein the tube assembly is in the separatingstate:

FIG. 32 is an enlarged view of the part B in FIG. 31 ;

FIG. 33 is a sectional view of the connecting state of the tube assemblyin FIG. 31 ;

FIG. 34 is a schematic diagram in which the first protrusion of theconnecting structure according to the sixth embodiment of the presentdisclosure is disposed at the first tube piece;

FIG. 35 is a schematic diagram in which the second protrusion of theconnecting structure according to the sixth embodiment of the presentdisclosure is disposed at the second tube piece;

FIG. 36 is a sectional view in which the first tube piece in FIG. 34 andthe second tube piece in FIG. 35 are connected, wherein the second tubepiece is connected to a bent pipe at the end that is further from thefirst tube piece;

FIG. 37 is a schematic diagram of the assembling between the tubeassembly according to the present disclosure with a breathing mask and aventilation pipeline; and

FIG. 38 is a sectional view in which the tube assembly in FIG. 37 isconnected to the breathing mask and the ventilation pipeline.

DETAILED DESCRIPTION OF THE EMBODIMENTS

The particular embodiments of the present disclosure will be describedin detail below with reference to the drawings. It should be understoodthat the particular embodiments described herein are merely intended todescribe and interpret the present disclosure, and are not intended tolimit the present disclosure.

In the present disclosure, unless stated otherwise, the used words oforientation, such as “upper”, “lower”, “top” and “bottom”, generallyrefer to the orientations shown in FIG. 2 , and “inner” and “outer”refer to the interior and the exterior with respect to the contours ofthe components themselves.

An aspect of the present disclosure provides a ventilation-treatmentapparatus, wherein the ventilation-treatment apparatus includes:

a headrest 10, wherein the headrest 10 includes a first chamber 11, anda gas inlet and a first gas hole 12 that communicate with the firstchamber 11, the gas inlet is for a gas from a gas source to enter thefirst chamber 11, and the first gas hole 12 is disposed with a firstvalve assembly for opening and closing the first gas hole 12; and

a patient-interface device 20, wherein the patient-interface device 20includes a main body 21 having a respiratory cavity, and a head band 22connected to the main body 21, the head band 22 includes a secondchamber 221, and a gas outlet and a second gas hole 222 that communicatewith the second chamber 221, the gas outlet communicates with the secondchamber 221 and the respiratory cavity, and the second gas hole 222 isdisposed with a second valve assembly for opening and closing the secondgas hole 222; and

the ventilation-treatment apparatus is configured for, when the firstvalve assembly and the second valve assembly contact, opening the firstgas hole 12 and the second gas hole 222, to make the first chamber 11communicate with the second chamber 221, and when the first valveassembly and the second valve assembly are separated, closing the firstgas hole 12 and the second gas hole 222.

By using the above technical solution, when the ventilation-treatmentapparatus according to the present disclosure is being used, when thehead band 22 and the headrest 10 contact, the first valve assembly andthe second valve assembly contact to open the first gas hole 12 and thesecond gas hole 222, thereby communicating the first chamber 11 with thesecond chamber 221, whereby the gas entering the first chamber 11 fromthe gas source may enter the second chamber 221 and further enter therespiratory cavity of the patient-interface device 20 for the patient toinhale. When the head band 22 and the headrest 10 are separated, thefirst valve assembly and the second valve assembly are separated toclose the first gas hole 12 and the second gas hole 222, therebypreventing the gas inside the first chamber 11 and the second chamber221 from flowing out via the first gas hole 12 and the second gas hole222, respectively. Therefore, the operations on the mainframe, thepatient-interface device and the ventilation pipeline when the treatmentis paused may be omitted, to implement simple operation and anytimeusage which can improve the reliability of the ventilation treatment andthe comfort of the patient in the treatment process.

In the above description, the first valve assembly and the second valveassembly may be any structure that may implement the function of openingand closing the gas holes.

According to an embodiment of the present disclosure, the first valveassembly may include a first valve body 13, and the first valve body 13penetrates the first gas hole 12 and is capable of movingreciprocatingly relative to the first gas hole (12) and in an axialdirection of the first gas hole (12), to move between a first openingposition of opening the first gas hole (12) and a first closing positionof closing the first gas hole (12); and the second valve assembly mayinclude a second valve body 23, and the second valve body 23 penetratesthe second gas hole 222 and is capable of moving reciprocatinglyrelative to the second gas hole (222) and in an axial direction of thesecond gas hole (222), to move between a second opening position ofopening the second gas hole (222) and a second closing position ofclosing the second gas hole (222). When the first valve body 13 and thesecond valve body 23 contact, the first valve body 13 and the secondvalve body 23 move to the first opening position and the second openingposition, respectively; and when the first valve body 13 and the secondvalve body 23 are separated, the first valve body 13 and the secondvalve body 23 move to the first closing position and the second closingposition, respectively.

In the above description, the movement of the first valve body 13 andthe second valve body 23 may adopt pressure driving, electric driving orany other suitable manner.

Particularly, according to an embodiment of the present disclosure, thefirst valve assembly may include a first electrical driving member, andthe first electrical driving member is configured to be capable of, whenthe first valve body 13 and the second valve body 23 contact,controlling the first valve body 13 to move to the first openingposition, and, when the first valve body 13 and the second valve body 23are separated, controlling the first valve body 13 to move to the firstclosing position; and the second valve assembly may include a secondelectrical driving member, and the second electrical driving member isconfigured to be capable of, when the second valve body 23 and the firstvalve body 13 contact, controlling the second valve body 23 to move tothe second opening position, and, when the second valve body 23 and thefirst valve body 13 are separated, controlling the second valve body 23to move to the second closing position. In other words, in the presentembodiment, the movement of the first valve body 13 and the second valvebody 23 is electrically driven, and the first valve body 13 and thesecond valve body 23 may be electrically operated valves.

According to another embodiment of the present disclosure, the headrest10 and the head band 22 may be made to squeeze when contacting eachother (for example, by the effect of the weight of the head of thepatient), whereby the movement of the first valve body 13 and the secondvalve body 23 is implemented by the effect of the mutual squeezing. Inother words, in the present embodiment, the movement of the first valvebody 13 and the second valve body 23 is pressure-driven. The first valveassembly may include a first elastic member 14, and the first valveassembly comprises a first elastic member (14), and the first elasticmember (14) is configured to be capable of, being compressed to allowthe first valve body (13) to move to the first opening position when thefirst valve body is under a pressure, and, being restored to drive thefirst valve body (13) to move to the first closing position when thefirst valve body (13) is released from the pressure; and the secondvalve assembly comprises a second elastic member (24), and the secondelastic member (24) is configured to be capable of being compressed toallow the second valve body (23) to move to the second opening positionwhen the second valve body (23) is under a pressure, and, being restoredto drive the second valve body (23) to move to the second closingposition when the second valve is released from the pressure.

In the present disclosure, the first valve body 13 and the second valvebody 23 may have any suitable structures. According to an embodiment ofthe present disclosure, as shown in FIGS. 2 to 5 , the first valve body13 includes a first penetrating part 131, and a first covering part 132and a first stopping part 133 that are connected to the two ends of thefirst penetrating part 131, the first penetrating part 131 penetratesthe first gas hole 12 and forms a radial gap with the first gas hole 12,the first covering part 132 and the first stopping part 133 are locatedat the inner side and the outer side of the first gas hole 12,respectively, the first covering part 132 is for covering and openingthe radial gap, the first stopping part 133 is for preventing the firstvalve body 13 from disengaging the first gas hole 12, the second valvebody 23 includes a second penetrating part 231, and a second coveringpart 232 and a second stopping part 233 that are connected to the twoends of the second penetrating part 231, the second penetrating part 231penetrates the second gas hole 222 and forms a radial gap with thesecond gas hole 222, the second covering part 232 and the secondstopping part 233 are located at the inner side and the outer side ofthe second gas hole 222, respectively, the second covering part 232 isfor covering and opening the radial gap, and the second stopping part233 is for preventing the second valve body 23 from disengaging thesecond gas hole 222.

In the above embodiment, the first elastic member 14 may be acompression spring nested to the first penetrating part 131, and thefirst elastic member 14 may be connected between the first stopping part133 and the periphery of the first gas hole 12. The first elastic member14 may also be configured that one end is connected to the firstpenetrating part 131, and the other end is connected to the periphery ofthe first gas hole 12 (as shown in FIG. 2 ), in which case the firstvalve body 13 may include merely the first penetrating part 131 and thefirst covering part 132 (as shown in FIG. 6 ). The second elastic member24 may be a compression spring nested to the second penetrating part231, and the second elastic member 24 may be connected between thesecond stopping part 233 and the periphery of the second gas hole 222.The second elastic member 24 may also be configured that one end isconnected to the second penetrating part 231, and the other end isconnected to the periphery of the second gas hole 222 (as shown in FIG.2 ), in which case the second valve body 23 may include merely thesecond penetrating part 231 and the second covering part 232 (as shownin FIG. 6 ).

In usage, when the first valve body 13 and the second valve body 23 arecontacting and squeezing each other, as shown in FIG. 3 , the firstvalve body 13 is applied an upward force and thus moves upwardlyrelatively to the first gas hole 12, whereby the first covering part 132gets further away from the first gas hole 12 and thus opens the radialgap between the first penetrating part 131 and the first gas hole 12,and the first elastic member 14 is further compressed; and the secondvalve body 23 is applied a downward force and thus moves downwardlyrelatively to the second gas hole 222, whereby the second covering part232 gets further away from the second gas hole 222 and thus opens theradial gap between the second penetrating part 231 and the second gashole 222, and the second elastic member 24 is further compressed. Inthis case, as shown by the arrow in FIG. 3 , the gas inside the firstchamber 11 may enter the second chamber 221 via the two radial gaps.Certainly, the gas inside the second chamber 221 may enter the firstchamber 11 via the two radial gaps. When the first valve body 13 and thesecond valve body 23 are separated from each other, as shown in FIG. 2 ,the first valve body 13 moves downwardly relatively to the first gashole 12 by the effect of the restoration of the first elastic member 14,whereby the first covering part 132 gets closer to the first gas hole 12and thus covers the radial gap between the first penetrating part 131and the first gas hole 12; and the second valve body 23 moves upwardlyrelatively to the second gas hole 222 by the effect of the restorationof the second elastic member 24, whereby the second covering part 232gets closer to the second gas hole 222 and thus covers the radial gapbetween the second penetrating part 231 and the second gas hole 222.

In the present disclosure, the ventilation-treatment apparatus mayfurther include a guiding member for guiding the contacting between thefirst valve assembly and the second valve assembly.

According to an embodiment of the guiding member according to thepresent disclosure, the guiding member may include a first magnet 15disposed at the periphery of the first gas hole 12 and a second magnet25 disposed at the periphery of the second gas hole 222, and themagnetic poles of the first magnet 15 and the magnetic poles of thesecond magnet 25 are set oppositely and correspondingly. When theheadrest 10 and the head band 22 contact, the first magnet 15 mayattract the second magnet 25, whereby the first valve assembly and thesecond valve assembly are aligned and contacted. In addition, the firstmagnet 15 and the second magnet 25 that are attracted together may sealthe communication between the first gas hole 12 and the second gas hole222. It should be noted that the first magnet 15 may be disposed at theinner side or the outer side of the periphery of the first gas hole 12,and the second magnet 25 may be disposed at the inner side or the outerside of the periphery of the second gas hole 222. Preferably, as shownin FIG. 2 , the first magnet 15 is disposed on the inner side of theperiphery of the first gas hole 12, and the second magnet 25 is disposedon the inner side of the periphery of the second gas hole 222, which mayprevent damaging or falling of the first magnet 15 and the second magnet25 after long-term usage of and friction between the headrest 10 and thehead band 22.

Optionally, as shown in FIGS. 2 and 3 , the head band 22 may be disposedwith a protrusion 223, a slot 224 is disposed at the top of theprotrusion 223, the second gas hole 222 is disposed in the slot 224, thesecond magnet 25 extends in the circumferential direction of the slotopening of the slot 224, the first magnet 15 extends in the periphery ofthe first gas hole 12, and the slot opening of the slot 224 is sealablewith the headrest 10 by the attraction between the first magnet 15 andthe second magnet 25. Such a configuration may further improve the leakproofness of the communication between the first gas hole 12 and thesecond gas hole 222. Tn addition, it may be understood that, in anotherembodiment, the protrusion 223 may also be disposed at the headrest 10.In this case, the first magnet 15 extends in the circumferentialdirection of the slot opening of the slot 224, the second magnet 25extends in the periphery of the second gas hole 222, and the slotopening of the slot 224 is sealable with the head band 22 by theattraction between the first magnet 15 and the second magnet 25.

In the above embodiment, the first electrical driving member and thesecond electrical driving member may be configured for, when the firstmagnet 15 and the second magnet 25 are attracting, controlling the firstvalve body 13 and the second valve body 23 to move to the openingposition, and, when the first magnet 15 and the second magnet 25 areseparated, controlling the first valve body 13 and the second valve body23 to move to the closing position.

According to another embodiment of the guiding member according to thepresent disclosure, as shown in FIGS. 4 and 5 , the guiding member mayinclude a protrusion 223 and a depression 16 that match, the protrusion223 is disposed at one of the headrest 10 and the head band 22, thedepression 16 is disposed at the other of the headrest 10 and the headband 22, the first gas hole 12 is disposed at one of the protrusion 223and the depression 16, and the second gas hole 222 is disposed at theother of the protrusion 223 and the depression 16. It should be notedthat a slot 224 may be disposed at the top of the protrusion 223, andthe first gas hole 12 or the second gas hole 222 is disposed in the slot224. When the headrest 10 and the head band 22 contact, the protrusion223 may be embedded into the depression 16, whereby the first valveassembly and the second valve assembly are aligned and contacted. Inaddition, the protrusion 223 and the depression 16 that are embeddedinto each other may further improve the leak proofness of thecommunication between the first gas hole 12 and the second gas hole 222.Certainly, the first magnet 15 and the second magnet 25 may also befurther disposed at the protrusion 223 and the depression 16,respectively.

In the present disclosure, in order to ensure the leak proofness of thecommunication between the first gas hole 12 and the second gas hole 222,the ventilation-treatment apparatus may include a sealing member, andthe sealing member is for, when the first valve assembly and the secondvalve assembly contact, sealing the communication between the first gashole 12 and the second gas hole 222. Particularly, in the embodimentshown in FIGS. 1 and 2 , the sealing member may be formed by the firstmagnet 15 and the second magnet 25, the sealing member may also beformed by a sealing ring that is nested outside the protrusion 223 andextends beyond the upper end surface of the protrusion 223, and when thefirst valve assembly and the second valve assembly contact, the sealingring may contact and squeeze the periphery of the first gas hole 12 toimplement the sealing. In the embodiment shown in FIGS. 3 and 4 , thesealing member may be a sealing ring 17, and the sealing ring 17 isnested outside the protrusion 223 or inside the depression 16, to, whenthe protrusion 223 is embedded inside the depression 16, seal the radialgap between the protrusion 223 and the depression 16. The sealing ring17 may be a silica-gel piece, and when the protrusion 223 is embeddedinside the depression 16, the sealing ring 17 is properly squeezed toimplement the sealing. In addition, in the structure of the sealing ringshown in FIGS. 4 and 5 , the sealing ring 17 may serve to guide theprotrusion 223 to be embedded into the depression 16.

In the above embodiment, the mode of the electric driving of themovement of the first valve body 13 and the second valve body 23 mayinclude: when the protrusion 223 is embedded inside the depression 16,forming an electrifying loop or triggering a contact switch, and in turncontrolling the first valve body 13 and the second valve body 23 to moveto the opening position; and when the protrusion 223 is separated fromthe depression 16, disconnecting the electrifying loop or triggering acontact switch, and in turn controlling the first valve body 13 and thesecond valve body 23 to move to the closing position.

In the present disclosure, the headrest 10 may be disposed with aplurality of first gas holes 12, the head band 22 may be disposed with aplurality of second gas holes 222, and when the head band 22 and theheadrest 10 contact, and a part of the second gas holes 222 are capableof being selectively in communication with a part of the first gas holes12 one to one correspondingly. In other words, no matter whether theheadrest 10 and the head band 22 locally contact or totally contact, aslong as they contact, the first gas hole 12 and the second gas hole 222at the correspondingly contacting parts may be in communication witheach other to make the gas inside the headrest 10 to enter the head band22, while the first gas hole 12 and the second gas hole 222 at theno-contacting area are closed, whereby no gas leakage happens.Accordingly, the ventilation-treatment apparatus according to thepresent disclosure, in the process of nighttime treatment, no matterwhether the patient turns the body, turns the head or performs anotheraction, may perform the ventilation treatment as long as the head band22 contacts the headrest 10, which may effectively ensure thereliability of the ventilation treatment, and improve the flexibility ofthe usage of the ventilation-treatment apparatus.

In the present disclosure, the patient-interface device 20 may be abreathing mask such as a nasal mask, an oral-nasal mask, a nasal pillowmask and a full-surface mask. For example, as shown in FIGS. 1 and 8-9 ,the main body 21 of the patient-interface device 20 may include a frame211 and a pad 212, the pad 212 is mounted to the frame 211 and definesthe respiratory cavity with the frame 211, and the head band 22 isconnected to the frame 211. The head band 22 may include a mainhead-band body and a connecting band for connecting the main head-bandbody to the frame 211, the main head-band body may cover the afterbrainand the two lateral sides of the head of the patient, the second chamber221 is defined by the main head-band body, and the connecting banddefines a communicating cavity for communicating the second chamber 221and the respiratory cavity. As shown in FIG. 6 , the frame 211 may bedisposed with a connecting opening 214 for the connecting band toconnect and communicate the respiratory cavity and the communicatingcavity.

Optionally, the connecting band may include an upper side band 225 and alower side band 226, both of the upper side band 225 and the lower sideband 226 may be connected to the frame 211 (as shown in FIG. 8 ), and atleast one of the upper side band 225 and the lower side band 226 has thecommunicating cavity.

In addition, in the embodiment shown in FIG. 1 , the main body 21 mayalso include a forehead support 213 connected to the frame 211, theupper side band 225 is connected to the forehead support 213, and thelower side band 226 is connected to the frame 211. In this case, if thecommunicating cavity is to be disposed at the upper side band 225, theforehead support 213 may be disposed with a hollow structure thatcommunicates the communicating cavity with the respiratory cavity.

In the present disclosure, in order to prevent the headrest 10 and thehead band 22 from being crushed to block the gas flowing, a honeycombcomponent or another supporting component may be disposed inside theheadrest 10 and the head band 22. That also facilitates improving thecomfort of the head.

In the present disclosure, as shown in FIG. 1 , theventilation-treatment apparatus may further include a mainframe 40serving as the gas source and a ventilation pipeline 50 forcommunicating the mainframe 40 with the headrest 10.

In addition, as shown in FIG. 7 , the ventilation-treatment apparatusmay further include a tube assembly 30, and the tube assembly 30 isconnected to the main body 21 to communicate the respiratory cavity withthe gas source. Particularly, one end of the tube assembly 30 may beconnected to the frame 211, and the other end may be connected to theventilation pipeline 50. In this case, the ventilation-treatmentapparatus may adopt two modes of the ventilation, wherein one is toventilate by using the headrest 10 and the head band 22, and the otheris to ventilate by using the tube assembly 30. In usage, a suitableventilation mode may be selected according to actual situations. Itshould be noted that, when the ventilation by using the headrest 10 andthe head band 22 is adopted, the tube assembly 30 and the ventilationpipeline 50 may be disconnected, and the tube assembly 30 may be blockedby using a plug. Certainly, optionally, the tube assembly 30 may also betaken down from the frame 211, and the opening for connecting the tubeassembly 30 on the frame 211 is blocked by using a plug. When theventilation by using the tube assembly 30 is adopted, optionally, thefirst valve assembly is disposed at one of the tube assembly 30 and theventilation pipeline 50, and the second valve assembly is disposed atthe other of the tube assembly 30 and the ventilation pipeline 50. Inusage, when the tube assembly 30 and the ventilation pipeline 50 areconnected, the first gas hole 12 and the second gas hole 222 are opened,and when the tube assembly 30 and the ventilation pipeline 50 aredisconnected, the first gas hole 12 and the second gas hole 222 areclosed.

In the usage of current ventilation-treatment apparatuses, when thepatient intends to pause the treatment and thus directly disengages thebreathing mask from the ventilation pipeline, because the mainframe isstill in the operating state, that results in a large gas-leakage noiseat the port of the ventilation pipeline, and a device alarming might betriggered because of a too large gas-leakage amount. In order to solvethe above problems, the present disclosure provides a novel tubeassembly 30. The tube assembly 30 may include a first tube piece 31 anda second tube piece 32, the tube assembly 30 has a connecting state inwhich the first tube piece 31 and the second tube piece 32 are coaxiallyplug-connected and a separating state in which the first tube piece 31and the second tube piece 32 are separate from each other, and the firsttube piece 31 has an inlet end for connecting the gas source and anoutlet end for connecting the second tube piece 32; the first tube piece31 has a discharging hole 311, and the discharging hole 311 isconfigured so that, in the connecting state, the discharging hole 311 isclosed to make the gas from the gas source to enter the second tubepiece 32, and in the separating state, the discharging hole 311 isopened to make the gas from the gas source to be discharged from thedischarging hole 311 to the external; and the tube assembly 30 furtherincludes a valve member, and the valve member is configured so that, inthe connecting state, the valve member opens the outlet end of the firsttube piece 31 to make the gas from the gas source to enter the secondtube piece 32, and in the separating state, the valve member closes theoutlet end to make the gas from the gas source to be discharged from thedischarging hole 311 to the external.

In the above description, it should be noted that the hole area of thedischarging hole 311 is less than the area of the outlet end of thefirst tube piece 31; in other words, the ventilation capacity of thedischarging hole 311 is less than the ventilation capacity of the outletend. In usage, by configuring the hole diameter and the quantity of thedischarging hole 311, the flow rate of the gas discharged from thedischarging hole 311 may be controlled, whereby, when the first tubepiece 31 and the second tube piece 32 are separate from each other, thegas cannot flow out of the outlet end of the first tube piece 31, andmay merely flow out of the discharging hole 311 at a desired lower flowrate.

In usage, when the patient intends to pause the treatment (for example,getting up and going to the bathroom), it is merely required to separatethe first tube piece 31 and the second tube piece 32. At this point, theoutlet end of the first tube piece 31 is closed, the discharging hole311 is opened, the first tube piece 31 discharges the gas at acontrollable flow rate, and the ventilation-treatment apparatus mayoperate normally and does not make an alarm due to gas leakage orpipeline falling, whereby the bed partner is not disturbed. Furthermore,the ventilation-treatment apparatus may be used and stopped at any time,and does not influence other actions of the patient, with easy andconvenient operation and usage, and good safety and sanitary.

In the tube assembly 30 according to the present disclosure, by usingthe above technical solutions, when the first tube piece 31 and thesecond tube piece 32 are plug-connected to each other, the valve memberopens the outlet end of the first tube piece 31 to allow the gas to flowfrom the first tube piece 31 to the second tube piece 32, and thedischarging hole 311 is closed to prevent the gas from flowing out ofthe discharging hole 311 at the same time, whereby the gas may merelyflow from the first tube piece 31 to the second tube piece 32. When thefirst tube piece 31 and the second tube piece 32 are separate from eachother, the valve member closes the outlet end of the first tube piece 31to prevent the gas from flowing out of the outlet end, andsimultaneously the discharging hole 311 is opened to make the gas to bedischarged from the discharging hole 311 to the external at a lower flowrate. Accordingly, the tube assembly according to the present disclosurecannot only ensure the effective flowing of the gas, but also, when thefirst tube piece 31 and the second tube piece 32 are separate from eachother, may enable the gas to be discharged to the external at a lowerflow rate, thereby preventing the generation of gas-leakage noise.

According to an embodiment of the valve member according to the presentdisclosure, the valve member includes a valve plate 33 rotatablydisposed inside the first tube piece 31, the rotation axis of the valveplate 33 is perpendicular to the axial direction of the first tube piece31, and the valve plate 33 may rotate between a first position where thedischarging hole 311 is closed and the outlet end of the first tubepiece 31 is opened (referring to FIG. 11 ) and a second position wherethe discharging hole 311 is opened and the outlet end of the first tubepiece 31 is closed (referring to FIG. 10 ). In this case, the valveplate 33 may be configured in two different modes. One is to configurethe valve plate 33 so that, in the second position, the edge of thevalve plate 33 abuts the inner wall surface of the first tube piece 31;in other words, the valve plate 33 may completely block the outlet end.In this case, the discharging hole 311 may be disposed in the tube wallof the first tube piece 31 (as shown in FIGS. 10 and 11 ), and may alsobe disposed in the valve plate 33 (as shown in FIG. 12 ). The other modeis to configure the valve plate 33 so that, in the second position, theedge of the valve plate 33 and the inner wall surface of the first tubepiece 31 have a gap therebetween, and the gap forms the discharging hole311 (as shown in FIGS. 14 and 15 ).

In other words, in the above modes, both of the opening and closing ofthe discharging hole 311 and the opening and closing of the outlet endof the first tube piece 31 are implemented by using the valve plate 33.Certainly, according to the different positions of the discharging hole311 in the tube wall of the first tube piece 31, the valve plate 33 mayalso cooperate with the second tube piece 32 to implement the functionof the valve member. As shown in FIG. 13 , the valve plate 33 isconnected to the top of the tube wall of the first tube piece 31, andthe discharging hole 311 is disposed at the bottom of the tube wall ofthe first tube piece 31. In this case, when the second tube piece 32 isinserted into the first tube piece 31, the second tube piece 32 pushesthe valve plate 33 to the first position to open the outlet end of thefirst tube piece 31, and simultaneously the tube wall of the second tubepiece 32 blocks the discharging hole 311. It should be noted that, afterthe second tube piece 32 has been inserted into the first tube piece 31,the outer wall surface of the second tube piece 32 is closely adhered tothe side surface of the valve plate 33 and the inner wall surface of thefirst tube piece 31, to prevent gas leakage.

According to another embodiment of the valve member according to thepresent disclosure, as shown in FIGS. 16 to 20 , the valve memberincludes a valve core 34 that is movably disposed inside the first tubepiece 31 in the axial direction of the first tube piece 31, thedischarging hole 311 is disposed in the tube wall of the first tubepiece 31, and the second tube piece 32 is disposed with a gas flowingchannel 321. The tube assembly 30 is configured so that, in theconnecting state, the valve core 34 moves to the upstream position ofthe discharging hole 311 in the direction of the gas flowing (i.e., thedirection from the first tube piece 31 to the second tube piece 32), thepart of the second tube piece 32 that protrudes into the first tubepiece 31 forms, together with the valve core 34, the valve member toclose the discharging hole 311, and the first tube piece 31 communicateswith the second tube piece 32 via the gas flowing channel 321 (referringto FIGS. 18 and 20 ); and in the separating state, the valve core 34moves to the downstream position of the discharging hole 311 in thedirection of the gas flowing to close the outlet end of the first tubepiece 31 (referring to FIGS. 17 and 19 ).

In the above description, the valve core 34 may be any component that iscapable of moving inside the first tube piece 31 and capable of blockingthe outlet end of the first tube piece 31; for example, the valve core34 may be a cylindrical body or a spherical body. In usage, for example,as shown in FIGS. 17 and 18 , when the second tube piece 32 is insertedinto the first tube piece 31, the second tube piece 32 may push thevalve core 34, which is originally located at the second position(referring to FIG. 17 ), to move rightwardly to the first position(referring to FIG. 18 ), at which point the discharging hole 311 iscovered by the tube wall of the second tube piece 32 and thus closed,and the gas inside the first tube piece 31 enters the second tube piece32 via the gap between the valve core 34 and the inner wall surface ofthe first tube piece 31 and the gas flowing channel 321. When the secondtube piece 32 and the first tube piece 31 are separate, the valve core34 moves, by the effect of the mobilization force of the gas, from thefirst position back to the second position, thereby blocking the outletend, to make the gas to be discharged via the discharging hole 311.

It may be understood that, in order to enable the valve core 34 to blockthe outlet end at the second position and generate the gap with theinner wall surface of the first tube piece 31 when the valve core 34moves to the first position, while the first tube piece 31 is configuredto be of a non-constant-diameter structure, as shown in FIGS. 17 to 20 .

In order to prevent the valve core 34 from, in the first position,continuing to move rightwardly or turning over, to affect the usage ofthe valve core 34 or even make failure of the device, the valve membermay further include a valve-core stopper 37 disposed inside the firsttube piece 31, and the valve-core stopper 37 is configured so that itmay limit the valve core 34. Particularly, for example, as shown in FIG.21 , the valve-core stopper 37 may be an annular boss disposed on theinner wall of the first tube piece 31, and when the valve core 34 is inthe first position, the right side surface of the valve core 34 iscapable of abutting the left side surface of the annular boss, wherebythe valve core 34 cannot continue to move rightwardly, and cannot turnover. Certainly, the right side surface of the valve core 34 may alsohave a gap with the left side surface of the annular boss, wherein thegap is less than the axial length of the valve core 34, which mayprevent turning-over of the valve core 34 in the horizontal direction(i.e., left-right turning-over). Optionally, the gap between the rightside surface of the valve core 34 and the left side surface of theannular boss is preferably set to be less than the maximum diameter ofthe valve core 34, which may prevent turning-over of the valve core 34in the vertical direction (i.e., up-down turning-over). In addition, forexample, as shown in FIG. 22 , the valve core 34 may also be made to bemore stable itself in structure. As compared with the valve core 34 inFIG. 21 , the center of gravity of the valve core 34 in FIG. 22 isdeviated to right, which may improve the stability of the valve core 34in the first position. Optionally, referring to FIG. 22 , the magnitudeof a may be between one third and two thirds of c, or a²+b²=c², whichmay prevent turning-over of the valve core 34. Certainly, the presentdisclosure is not limited thereto, and the valve-core stopper 37 may beany component or structure that may limit the valve core 34 as describedabove.

In the present disclosure, when the tube assembly 30 is in theconnecting state, the first tube piece 31 and the second tube piece 32may be configured to be capable of rotating relatively to each other,and may also be configured to be not capable of rotating. In addition,the tube assembly 30 may further include a connecting structure forconnecting the first tube piece 31 and the second tube piece 32, and theconnecting structure is configured to be capable of preventing the firsttube piece 31 and the second tube piece 32 from separating from eachother in the connecting state. That may prevent the first tube piece 31and the second tube piece 32 from being separated accidentally to affectthe gas flowing.

According to an embodiment of the connecting structure according to thepresent disclosure, the connecting structure includes a clip 312 and aclipping slot 322 that match, the clip 312 is disposed at one of thefirst tube piece 31 and the second tube piece 32, and the clipping slot322 is disposed at the other of the first tube piece 31 and the secondtube piece 32.

In the above embodiment, the clip 312 and the clipping slot 322 may beconfigured in various modes. For example, as shown in FIGS. 23 and 24 ,the clip 312 may be disposed on the outer wall surface of the secondtube piece 32, and the clipping slot 322 may be disposed on the innerwall surface of the first tube piece 31, wherein when it is required toseparate the first tube piece 31 and the second tube piece 32, the clip312 and the clipping slot 322 may be separated by using a heavy force.

For example, as shown in FIGS. 25 and 26 , the clipping slot 322 may bedisposed on the outer wall surface of the second tube piece 32, the clip312 may be rotatably connected to the outer wall surface of the firsttube piece 31, and the clip 312 is configured to be capable of swingingin the radial direction of the first tube piece 31 to be snap-fitted toor separated from the clipping slot 322. The clipping slot 322 may be ofan arc shape or annular shape that extends in the circumferentialdirection of the second tube piece 32, and its length of extension isgreater than the corresponding length of its snap fitting to the clip312; in this case, one clipping slot 322 may be snap-fitted to aplurality of clips 312. In addition, in such a mode of configuration, inorder to prevent the clip 312 from disengaging from the clipping slot322 when it is snap-fitted to the clipping slot 322, the clip 312 may beconfigured to have a snap-fitting state in which it is snap-fitted tothe clipping slot 322 and a separating state in which it is separatedfrom the clipping slot 322. Furthermore, the clip 312 swings from thesnap-fitting state to the separating state merely when it is applied aforce, and the clip 312 is always in the snap-fitting state naturally.As shown in FIG. 25 , when it is required to snap-fit the clip 312 tothe clipping slot 322, the right end of the clip 312 may be pressed tofirstly make the clip 312 to swing to the separating state to allow itto be snap-fitted to the clipping slot 322. A slide-proof part 313 maybe disposed on the outer side surface of the right end of the clip 312.

Certainly, another component may also be used to prevent the clip 312from disengaging from the clipping slot 322 when it is snap-fitted tothe clipping slot 322. In other words, the tube assembly 30 may includea limiting member, and the limiting member is for preventing the clip312 from disengaging from the clipping slot 322 when it is snap-fittedto the clipping slot 322. For example, as shown in FIGS. 27 to 29 , thelimiting member is a lantern ring 35 that is movably nested outside thefirst tube piece 31 or the second tube piece 32 in the axial directionof the first tube piece 31. When the clip 312 is snap-fitted to theclipping slot 322, the lantern ring 35 may be moved leftwardly to coverthe clip 312, thereby preventing the clip 312 from rotating. When it isrequired to separate the first tube piece 31 and the second tube piece32, firstly the lantern ring 35 is moved rightwardly to expose the clip312, and subsequently the clip 312 is rotated till it is separated fromthe clipping slot 322.

It may be envisaged that, in another embodiment, as shown in FIG. 30 ,the connecting structure may also merely include the lantern ring 35,the lantern ring 35 is rotatably connected to the first tube piece 31,and the inner wall surface of the lantern ring 35 may be disposed withan internal thread. Correspondingly, the outer wall surface of thesecond tube piece 32 may be disposed with an external thread, and theinternal thread and the external thread may be mutually locked byrotating the lantern ring 35, whereby the first tube piece 31 and thesecond tube piece 32 are connected. When it is required to separate thefirst tube piece 31 and the second tube piece 32, the lantern ring 35may be rotated in the opposite direction, whereby the threads arereleased, to complete the separation.

For example, as shown in FIGS. 31 to 33 , the clipping slot 322 is anL-shaped slot disposed in the tube wall of the second tube piece 32, theL-shaped slot includes an axial part and a radial part, the clip 312 isa cylindrical piece that is protrusively disposed on the tube wall ofthe first tube piece 31, and the cylindrical piece is capable of, whenthe first tube piece 31 and the second tube piece 32 are plug-connected,entering the axial part and moving to the radial part to implement thesnap fitting. In this case, in order to prevent the clip 312 fromdisengaging from the clipping slot 322 when it is snap-fitted to theclipping slot 322, as shown in FIG. 32 , the limiting member may be alug 323 disposed inside the radial part, and the lug 323 may releasablystop the cylindrical piece. In usage, by rotating the first tube piece31 or the second tube piece 32, the cylindrical piece may move over thelug 323 and move to the left side of the lug 323 to implement thelimiting. When it is required to separate the first tube piece 31 andthe second tube piece 32, the first tube piece 31 or the second tubepiece 32 may be rotated in the opposite direction, whereby thecylindrical piece moves over the lug 323 and moves to the right side ofthe lug 323, and in turn disengages the clipping slot 322.

It should be noted that, in the above description, the clip 312 and theclipping slot 322 may exchange the positions. In addition, the clip 312and the clipping slot 322 are not limited to the above-describedstructures, and other structures that may implement their function alsofall within the protection scope of the present disclosure.

According to another embodiment of the connecting structure according tothe present disclosure, as shown in FIGS. 34 to 36 , the connectingstructure includes a first protrusion 314 and a second protrusion 324that match, the first protrusion 314 is disposed on the inner wallsurface or the outer wall surface of the first tube piece 31, the secondprotrusion 324 is disposed on the outer wall surface or the inner wallsurface of the second tube piece 10, and the first protrusion 314 andthe second protrusion 324 are configured to be capable of snap-fittingor separating by the rotation relative to each other of the first tubepiece 31 and the second tube piece 32. Particularly, as shown in FIG. 34, the first protrusion 314 may be T-shaped. As shown in FIG. 35 , thesecond protrusion 324 may include two convex parts that are separated inthe circumferential direction of the second tube piece 32. When thesecond tube piece 32 is plug-connected to the first tube piece 31, thefirst protrusion 314 and the second protrusion 324 are made to avoideach other, and after the plug connection, by rotating the first tubepiece 31 or the second tube piece 32, the first protrusion 314 and thesecond protrusion 324 may face each other axially to implement the snapfitting, at which point the axial part of the first protrusion 314 issnap-fitted between the two convex parts to implement the rotarylimiting. Certainly, the first protrusion 314 and the second protrusion324 are not limited to the structures shown in FIGS. 34 and 35 , andother structures that may implement the rotary snap fitting also fallwithin the protection scope of the present disclosure.

It should be noted that, in the above-described embodiments of theconnecting structure, the connecting structure may include a pluralityof clips 312 and a plurality of clipping slots 322. The plurality ofclips 312 and the plurality of clipping slots 322 may be disposedseparately in the circumferential directions of the first tube piece 31and the second tube piece 32, respectively.

According to yet another embodiment of the connecting structureaccording to the present disclosure, the connecting structure mayinclude a first magnet and a second magnet which magnetic poles areopposite, the first magnet is set at one of the first tube piece 31 andthe second tube piece 32, and the second magnet is set at the other ofthe first tube piece 31 and the second tube piece 32. After the firsttube piece 31 and the second tube piece 32 have been plug-connected,further connection may be implemented by the attraction between thefirst magnet and the second magnet.

According to still another embodiment of the connecting structureaccording to the present disclosure, the connecting structure mayinclude a first thread and a second thread that match, the first threadis disposed at one of the first tube piece 31 and the second tube piece32, and the second thread is disposed at the other of the first tubepiece 31 and the second tube piece 32. In other words, the first tubepiece 31 and the second tube piece 32 may be interconnected by thethreads disposed on the inner wall surfaces or the outer wall surfaces.

The connecting structure according to the present disclosure is notlimited to the above-described embodiments, and the connecting structuremay also have other embodiments. For example, the second tube piece 32may be disposed with a metal that may be magnetically attracted (forexample, iron), and the first tube piece 31 may be disposed with anelectromagnet device and a switch. Alternatively, the first tube piece31 and the second tube piece 32 are disposed with an electric buckle anda buckle slot that match. When the second tube piece 32 is inserted intothe first tube piece 31, the switch is closed to form a loop, and theelectromagnet, when electrified, has magnetism, to attract the metal onthe second tube piece 32, whereby the first tube piece 31 and the secondtube piece 32 do not easily disengage. Alternatively, after the loop hasbeen formed, the electric buckle acts to buckle the buckle slot in thesecond tube piece 32. When the first tube piece 31 and the second tubepiece 32 are to be separated, the switch is operated, and theelectromagnet, when powered off, loses the magnetism, or the electricbuckle, when powered off, is restored, whereby the first tube piece 31and the second tube piece 32 may be easily separated.

In the present disclosure, the tube assembly 30 may further include abent pipe 36, and the bent pipe 36 is connected to the end of the secondtube piece 32 that is further from the first tube piece 31. The bentpipe 36 and the second tube piece 32 may be configured to be capable ofrotating relatively to each other, and may also be configured to be notcapable of rotating. The bent pipe 36 and the second tube piece 32 mayalso be formed integrally. An anti-suffocation valve plate 361 may bedisposed inside the bent pipe 36, to ensure the unidirectional flowingof the gas. In such a case, the tube assembly 30 is connected to theframe 211 by the bent pipe 36.

In the present disclosure, the opening and closing of the outlet end ofthe first tube piece 31 and the opening and closing of the discharginghole 311 may also be automatically controlled. For example, after thefirst tube piece 31 and the second tube piece 32 have been connected, anelectric signal may be generated (for example, by using a loopconnection, a sensor, a touch switch and so on), and the signal controlsthe outlet end of the first tube piece 31 to open and the discharginghole 311 to close. After the first tube piece 31 and the second tubepiece 32 have been separated, the connection between the first tubepiece 31 and the second tube piece 32 is broken, and no electric signalis generated, at which point the outlet end of the first tube piece 31is closed, and the discharging hole 311 is opened, to discharge the gasat a controllable flow rate.

In the present disclosure, the parameters of the discharging hole 311(such as the quantity, the diameter thickness, the hole inner cone, theouter cone and the hydrophobic material) may be particularly set tofurther control the flow rate and reduce the noise. For example, whenthe discharging hole 311 is disposed in the tube wall of the first tubepiece 31, one of the inner wall surface and the outer wall surface ofthe tube wall may be formed by using a hydrophobic material or ahydrophilic material, or be spread-coated with a hydrophobic material ora hydrophilic material. The other of the wall surfaces may be formed orspread-coated by the other of a hydrophobic material and a hydrophilicmaterial. The discharging hole 311 may be configured to be of astructure in which the ventilation areas at the two ends are different,for example a trapezoid or a hourglass shape. Particularly, when thetube assembly 30 is applied to a breathing mask, the discharging hole311 may be configured according to the depth of the mask in thedirection of the sagittal section (cutting a human body into a left partand a right part, the section interface between the left part and theright part refers to a sagittal plane). When the depth is lower, or, inother words, the face of the patient has a lower distance from thedischarging hole 311, it may be set that the proximal discharging-holearea is greater than the distal discharging-hole area, to preventgas-flow intersection to make a large noise. When the depth is higher,or, in other words, the face of the patient has a higher distance fromthe discharging hole 311, it may be set that the proximaldischarging-hole area is greater than the distal discharging-hole area,which facilitates the dissipation of the discharged gas. In addition, aturbulent member (for example, a spoiler) may be disposed between theproximal component and the distal component, thereby reducing the noiseof the gas discharging.

In the present disclosure, the quantity, the size, the spacing and theoverall layout of the discharging holes 311 may have variousembodiments. For example, the diameter of the discharging hole 311 mayrange 0.4 mm-1.5 mm, preferably 0.6 mm-0.8 mm. The thickness of theposition where the discharging hole 311 is disposed may be 1 mm-20 mm.

Another aspect of the present disclosure provides a ventilation-controlmethod, wherein the method is performed by using theventilation-treatment apparatus stated above, and the method includesthe following steps:

generating a first signal when the first valve assembly and the secondvalve assembly contact, and according to the first signal, controllingthe mainframe 40 to start up or increase the ventilation capacity (i.e.,increasing the gas flow rate from the mainframe 40 to the ventilationpipeline 50); and/or

generating a second signal when the first valve assembly and the secondvalve assembly are separated, and according to the second signal,controlling the mainframe 40 to shut down or reduce the ventilationcapacity (i.e., reducing the gas flow rate from the mainframe 40 to theventilation pipeline 50).

In the present disclosure, the action of the mainframe 40 preferablyhappens after the actions of the first valve body 13 and the secondvalve body 23. In addition, the method may further include: after themainframe 40 has been started up, when the head band 22 and the headrest10 disengage, enabling the ventilation-treatment apparatus to emit analarm; according to the first signal, controlling the first valve body13 and the second valve body 23 to move to the opening position; andaccording to the second signal, controlling the first valve body 13 andthe second valve body 23 to move to the closing position.

In the present disclosure, in order to generate the first signal and thesecond signal, a heat sensing device or a pressure detecting device maybe disposed at the headrest 10. In usage, when the heat sensing devicehas sensed heat within a particular distance range, or when the pressuredetecting device has detected the pressure by the head of the patient,the first signal is generated. When the heat sensing device does notsense heat within the particular distance range, or when the pressuredetecting device does not detect the pressure by the head of thepatient, the second signal is generated. It may be understood that theheat sensing device or the pressure detecting device may also bedisposed at any other suitable position, for example a mattress.

According to an embodiment of the present disclosure, the pressuredetecting device is disposed at the surface of the headrest 10. When thepatient lies down and prepares to accept the treatment, the head band 22and the headrest 10 contact, and the first valve body 13 and the secondvalve body 23 automatically move to the opening position under thepressure of the head, to form a ventilation channel. At this point, thepressure detecting device detects the pressure, generates the firstsignal, and controls the mainframe 40 to start to operate in turnaccording to the first signal. When the patient gets up, the head band22 and the headrest 10 are separated, and the first valve body 13 andthe second valve body 23 automatically move to the closing position. Atthis point, the pressure detecting device does not detect the pressure,generates the second signal, and controls the mainframe 40 to stopoperating in turn according to the second signal.

The automatic ventilation-control method using the ventilation-treatmentapparatus has been described above. It should be noted that, in usage,the patient may select manual treatment or automatic treatment accordingto demands, wherein the manual treatment refers to that the actions ofthe mainframe 40 (such as starting-up and shutting-down) are manuallycontrolled.

The preferable embodiments of the present disclosure have been describedin detail above with reference to the drawings. However, the presentdisclosure is not limited to the particular details of the aboveembodiments. Within the scope of the technical concept of the presentdisclosure, the technical solutions of the present disclosure may havevarious simple variations, and all of those simple variations fallwithin the protection scope of the present disclosure.

In addition, it should be noted that the particular technical featuresdescribed in the particular embodiments, subject to no contradiction,may be combined in any feasible way. In order to avoid unnecessaryrepeating, the feasible modes of combination will not be describedfurther herein.

Furthermore, the different embodiments of the present disclosure mayalso be combined in any way, and, as long as the combinations do notdepart from the concept of the present disclosure, they should also beconsidered as the contents disclosed by the present disclosure.

The above-described device embodiments are merely illustrative, whereinthe units that are described as separate components may or may not bephysically separate, and the components that are displayed as units mayor may not be physical units; in other words, they may be located at thesame one location, and may also be distributed to a plurality of networkunits. Some or all of the modules may be selected according to theactual demands to implement the purposes of the solutions of theembodiments. A person skilled in the art can understand and implementthe technical solutions without paying creative work.

The “one embodiment”, “an embodiment” or “one or more embodiments” asused herein means that particular features, structures orcharacteristics described with reference to an embodiment are includedin at least one embodiment of the present disclosure. Moreover, itshould be noted that here an example using the wording “in anembodiment” does not necessarily refer to the same one embodiment.

The description provided herein describes many concrete details.However, it can be understood that the embodiments of the presentdisclosure may be implemented without those concrete details. In some ofthe embodiments, well-known processes, structures and techniques are notdescribed in detail, so as not to affect the understanding of thedescription.

In the claims, any reference signs between parentheses should not beconstrued as limiting the claims. The word “comprise” does not excludeelements or steps that are not listed in the claims. The word “a” or“an” preceding an element does not exclude the existing of a pluralityof such elements. The present disclosure may be implemented by means ofhardware comprising several different elements and by means of aproperly programmed computer. In unit claims that list several devices,some of those devices may be embodied by the same item of hardware. Thewords first, second, third and so on do not denote any order. Thosewords may be interpreted as names.

Finally, it should be noted that the above embodiments are merelyintended to explain the technical solutions of the present disclosure,and not to limit them. Although the present disclosure is explained indetail with reference to the above embodiments, a person skilled in theart should understand that he can still modify the technical solutionsset forth by the above embodiments, or make equivalent substitutions topart of the technical features of them. However, those modifications orsubstitutions do not make the essence of the corresponding technicalsolutions depart from the spirit and scope of the technical solutions ofthe embodiments of the present disclosure.

1. A ventilation-treatment apparatus, wherein the ventilation-treatmentapparatus comprises: a headrest, wherein the headrest comprises a firstchamber, and a gas inlet and a first gas hole that communicate with thefirst chamber, the gas inlet is configured for gas from a gas source toenter the first chamber, and a first valve assembly for opening andclosing the first gas hole, is disposed at the first gas hole; and apatient-interface device, wherein the patient-interface device comprisesa main body having a respiratory cavity, and a head band connected tothe main body, the head band comprises a second chamber, and a gasoutlet and a second gas hole that communicate with the second chamber,the gas outlet communicates with the second chamber and the respiratorycavity, and a second valve assembly for opening and closing the secondgas hole is disposed at the second gas hole; and theventilation-treatment apparatus is configured for, when the first valveassembly and the second valve assembly contact, opening the first gashole and the second gas hole, to make the first chamber communicateswith the second chamber, and when the first valve assembly and thesecond valve assembly are separated, closing the first gas hole and thesecond gas hole.
 2. The ventilation-treatment apparatus according toclaim 1, wherein the first valve assembly comprises a first valve body,and the first valve body penetrates the first gas hole and is capable ofmoving reciprocatingly relative to the first gas hole and in an axialdirection of the first gas hole, to move between a first openingposition of opening the first gas hole and a first closing position ofclosing the first gas hole; the second valve assembly comprises a secondvalve body, and the second valve body penetrates the second gas hole andis capable of moving reciprocatingly relative to the second gas hole andin an axial direction of the second gas hole, to move between a secondopening position of opening the second gas hole and a second closingposition of closing the second gas hole; when the first valve body andthe second valve body contact, the first valve body moves to the firstopening position, and the second valve body moves to the second openingposition; and when the first valve body and the second valve body areseparated, the first valve body moves to the first closing position, andthe second valve body moves to the second closing position.
 3. Theventilation-treatment apparatus according to claim 2, wherein the firstvalve assembly comprises a first electrical driving member, and thefirst electrical driving member is configured to be capable of, when thefirst valve body and the second valve body contact, controlling thefirst valve body to move to the first opening position, and when thefirst valve body and the second valve body are separated, controllingthe first valve body to move to the first closing position; and thesecond valve assembly comprises a second electrical driving member, andthe second electrical driving member is configured to be capable of,when the second valve body and the first valve body contact, controllingthe second valve body to move to the second opening position, and whenthe second valve body and the first valve body are separated,controlling the second valve body to move to the second closingposition.
 4. The ventilation-treatment apparatus according to claim 2,wherein the first valve assembly comprises a first elastic member, andthe first elastic member is configured to be capable of, beingcompressed to allow the first valve body to move to the first openingposition when the first valve body is under a pressure, and, beingrestored to drive the first valve body to move to the first closingposition when the first valve body is released from the pressure; andthe second valve assembly comprises a second elastic member, and thesecond elastic member is configured to be capable of being compressed toallow the second valve body to move to the second opening position whenthe second valve body is under a pressure, and, being restored to drivethe second valve body to move to the second closing position when thesecond valve is released from the pressure.
 5. The ventilation-treatmentapparatus according to claim 4, wherein the first valve body comprises afirst penetrating part, and a first covering part and a first stoppingpart that are connected to two ends of the first penetrating part,respectively, the first penetrating part penetrates the first gas holeand forms a radial gap with the first gas hole, the first covering partand the first stopping part are located at an inner side and an outerside of the first gas hole, respectively, the first covering part isconfigured for covering and opening the radial gap, the first elasticmember is a compression spring nested to the first penetrating part, andthe first elastic member is connected between the first stopping part,and a periphery of the first gas hole; and the second valve bodycomprises a second penetrating part, and a second covering part and asecond stopping part that are connected to two ends of the secondpenetrating part, the second penetrating part penetrates the second gashole and forms a radial gap with the second gas hole, the secondcovering part and the second stopping part are located at an inner sideand an outer side of the second gas hole, respectively, the secondcovering part is configured for covering and opening the radial gap, thesecond elastic member is a compression spring nested to the secondpenetrating part, and the second elastic member is connected between thesecond stopping part and a periphery of the second gas hole.
 6. Theventilation-treatment apparatus according to claim 1, wherein theventilation-treatment apparatus comprises a guiding member for guidingthe contact between the first valve assembly and the second valveassembly.
 7. The ventilation-treatment apparatus according to claim 6,wherein the guiding member comprises a first magnet disposed at aperiphery of the first gas hole and a second magnet disposed at aperiphery of the second gas hole, and magnetic poles of the first magnetand magnetic poles of the second magnet are set oppositely andcorrespondingly.
 8. The ventilation-treatment apparatus according toclaim 1, wherein the ventilation-treatment apparatus comprises a sealingmember, and the sealing member is configured for, when the first valveassembly and the second valve assembly contact, sealing thecommunication between the first gas hole and the second gas hole.
 9. Theventilation-treatment apparatus according to claim 7, wherein theheadrest is disposed with a protrusion, a slot is disposed at a top ofthe protrusion, the first gas hole is disposed in the slot, the firstmagnet extends in a circumferential direction of a slot opening of theslot, the second magnet extends along the periphery of the second gashole, and the slot opening of the slot is sealable with the head band byattraction between the first magnet and the second magnet; or the headband is disposed with a protrusion, a slot is disposed at a top of theprotrusion, the second gas hole is disposed in the slot, the secondmagnet extends in a circumferential direction of a slot opening of theslot, the first magnet extends along the periphery of the first gashole, and the slot opening of the slot is sealable with the headrest byattraction between the first magnet and the second magnet.
 10. Theventilation-treatment apparatus according to claim 6, wherein theguiding member comprises a protrusion and a depression that match, theprotrusion is disposed at one of the headrest and the head band, thedepression is disposed at the other of the headrest and the head band,the first gas hole is disposed at one of the protrusion and thedepression, and the second gas hole is disposed at the other of theprotrusion and the depression.
 11. The ventilation-treatment apparatusaccording to claim 10, wherein the ventilation-treatment apparatuscomprises a sealing member, the sealing member is configured for, whenthe first valve assembly and the second valve assembly contact, sealingthe communication between the first gas hole and the second gas hole,the sealing member is a sealing ring, and the sealing ring is nestedoutside the protrusion or inside the depression, to seal the radial gapbetween the protrusion and the depression when the protrusion isembedded inside the depression.
 12. The ventilation-treatment apparatusaccording to claim 1, wherein the headrest is provided with theplurality of first gas holes, the head band is disposed with theplurality of second gas holes, and when the head band and the headrestcontact, and a part of the second gas holes are capable of beingselectively communicate with a part of the first gas holes one to onecorrespondingly.
 13. The ventilation-treatment apparatus according toclaim 1, wherein the ventilation-treatment apparatus comprises a tubeassembly, and the tube assembly is connected to the main body tocommunicate the respiratory cavity with the gas source.
 14. Theventilation-treatment apparatus according to claim 13, wherein the tubeassembly comprises a first tube piece and a second tube piece, the tubeassembly is provided with a connecting state in which the first tubepiece and the second tube piece are coaxially plug-connected and aseparating state in which the first tube piece and the second tube pieceare separate from each other, and the first tube piece is provided withan inlet end for connecting the gas source and an outlet end forconnecting the second tube piece; the first tube piece is provided witha discharging hole, and the discharging hole is configured so that, inthe connecting state, the discharging hole is closed to make the gasfrom the gas source to enter the second tube piece, and in theseparating state, the discharging hole is opened to make the gas fromthe gas source to be discharged from the discharging hole to theexternal; and the tube assembly comprises a valve member, and the valvemember is configured so that, in the connecting state, the valve memberopens the outlet end of the first tube piece to make the gas from thegas source to enter the second tube piece, and in the separating state,the valve member closes the outlet end to make the gas from the gassource to be discharged from the discharging hole to the external.
 15. Aventilation-control method, wherein the ventilation-control method isperformed by using the ventilation-treatment apparatus according toclaim 1, the ventilation-treatment apparatus further comprises amainframe serving as the gas source, and the ventilation-control methodcomprises the following steps: generating a first signal when the firstvalve assembly and the second valve assembly contact, and according tothe first signal, controlling the mainframe to start up or increase aventilation capacity; and/or generating a second signal when the firstvalve assembly and the second valve assembly are separated, andaccording to the second signal, controlling the mainframe to shut downor reduce a ventilation capacity.